My new book about Raspberry Pi Retro Gaming is on sale for $7

I spent the first part of the year co-writing a book with Ryan Bates for Apress called Raspberry Pi Retro Gaming: Build Consoles and Arcade Cabinets to Play Your Favorite Classic Games. You can buy a hardcopy or Kindle version on Amazon. But if you go directly to the Apress site and use code CYBERWEEK19, you can get the DRM-free eBook (PDF and EPUB) for $7.